Home / 780,014.70-1,170,132.77-240,314.79

Finding the Fourth Proportional to 780,014.70, 1,170,132.77 and 240,314.79

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Solution

The fourth proportional to 780,014.70, 1,170,132.77 and 240,314.79 is: 360,506.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,014.70 : 1,170,132.77 = 240,314.79 : x
  2. Step 2: Convert to fraction form
    780,014.70/1,170,132.77 = 240,314.79/x
  3. Step 3: Cross multiply
    780,014.70x = 1,170,132.77 × 240,314.79
  4. Step 4: Simplify right side
    780,014.70x = 281,200,209,693.09
  5. Step 5: Solve for x
    x = 281,200,209,693.09/780,014.70
  6. Step 6: Final answer
    x = 360,506.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.